CA2150107A1 - Corner with reclosable corner pour opening - Google Patents

Corner with reclosable corner pour opening

Info

Publication number
CA2150107A1
CA2150107A1 CA002150107A CA2150107A CA2150107A1 CA 2150107 A1 CA2150107 A1 CA 2150107A1 CA 002150107 A CA002150107 A CA 002150107A CA 2150107 A CA2150107 A CA 2150107A CA 2150107 A1 CA2150107 A1 CA 2150107A1
Authority
CA
Canada
Prior art keywords
carton
top panel
flange
flap
closure flap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002150107A
Other languages
French (fr)
Inventor
James C. Fogle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphic Packaging International LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2150107A1 publication Critical patent/CA2150107A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/70Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/72Contents-dispensing means
    • B65D5/721Contents-dispensing means consisting of mobile elements forming part of the containers or attached to the containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/70Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/705Tearable flaps defined by score-lines or incisions provided in the body of a tubular container made of a single blank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
  • Saccharide Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A carton constructed to permit the contents to be poured out over an upper corner. The top panel (18) includes a fold line (46) about which a corner closure flap (47) pivots. The corner flap includes a flange (45) formed by tear lines in portions of the adjacent side and end panels (12, 14).
Additional layers of material in face-to-face contact with the inner surface of the side and end panels in the area of the closure flap provide edges over which the contents are poured. The closure flap fits tightly over the additional layers to hold it in place after it has been reclosed.

Description

C~RTON WITH RECLOSABLE CORNER POUR OPENING

Field of the Invention This invention relates to cartons for packaging pourable material. More particularly, it relates to cartons of this type which contain closable pouring openings.
Background of the Invention It is well known to package dry particulate material in boxes or cartons from which it can be poured. Cereal, for example, is conventionally packaged in rectangular boxes having a top panel formed from overlapping flaps connected to the side panels and underlying glue flaps connected to the end panels. The package is opened by separating the outer top panel flap from the inner top panel flap, and is closed by inserting an end tab on the outer flap into a locking slot in the inner flap. The slot is initially hidden from view by the overlapping flap and is exposed upon separating the two flaps. A common complaint against this package design is the difficulty in separating the flaps. The glue adhering the overlapping flaps to each other and to the underlying short glue flaps is often so strong or so liberally applied that the outer flap tears instead of separating along the glue line. If the tab is completely torn off, the top panel flaps cannot be connected together to close the package. Even if the tab is only partially torn or the outer flap is weakened by tearing in other areas, the flaps cannot normally be securely held in place after opening.
Another complaint against the conventional package has to do with pouring the contents. Pouring takes place over an end edge of the top opening and over the adjacent opened end glue flap. This relatively wide area makes it difficult to control the flow of the particles, sometimes resulting in the particles spilling out over the outer sides of the glue flaps.
When packaging heavier particulate material the carton can be too heavy to conveniently be lifted by grasping the sides of the carton. It would be preferable in these cases to carry the package by a handle instead. Moreover, if it is desired to have a wider carton for better stability and handleability or to more conveniently package greater quantities of material in a carton, a handle becomes necessary. Introduction of a handle, however, limits the ability to provide a pouring opening in the top panel.
It would be desirable to have a carton with an improved reclosable pouring arrangement capable of concentrating the flow of particles poured from the carton.
Brief Summary of the Invention The invention is embodied in a carton comprised of side panels, end panels, a top panel and a bottom panel.
A closure flap movable from closed position to open position is provided in a corner portion of the top panel and includes a flange comprised of upper portions of adjacent side and end panels. The carton further includes corner edges over which material packaged in the carton can be poured after the closure flap has been opened and means for maintaining the closure flap in closed position until disabled.
In a preferred embodiment, the means for maintaining the closure flap in closed position until disabled comprises tear lines connecting the closure flap flange to portions of the adjacent side and end panels. Removal of a tear strip in the side and end panels directly beneath the flange provides access to the flange when initially opening the closure flap. Fold lines in the top panel permit the closure flap to pivot up when moved from closed to open position.
The corner pouring edges are the upper edges of inserts or flaps positioned directly inside the portions of the side and end panels forming the flange of the closure flap. A handle in the top panel facilitates lifting and tilting the carton for pouring.
The carton can be readily opened without destroying or damaging its pouring and reclosing features and can be economically formed from a blank of generally rectangular shape.
These and other features and aspects of the invention, - 21~0107 .
as well as its various benefits, will be made more clear in the subsequent detailed description of the preferred embodiment.
Brief Description of the Drawings FIG. 1 is a pictorial view of a carton embodying the features of the invention;
FIG. 2 is a plan view of a blank for forming the carton of FIG. 1;
FIG. 3 is a partial pictorial view of the carton at an interim stage of fabrication;
FIG. 4 is a transverse sectional view taken along line 4-4 of FIG. 3;
FIG. 5 is a partial pictorial view of the carton at a subsequent interim stage of fabrication;
FIG. 6 is a partial pictorial view of the carton during removal of the tear strip;
FIG. 7 is a partial pictorial view of the carton similar to that of FIG. 6, but after the corner closure flap has been folded up for pouring; and FIG. 8 is a partial plan view of a carton blank with a modified top panel flap design.
Detailed Description of the Preferred Embodiments Referring to FIG. 1, the carton 10 is comprised of side panels 12 connected to end panels 14, a top panel 16 and a bottom panel, not visible in this view. Overlapping flaps 18 and 20, which are connected to their associated side panels by fold lines 22 and 24, form the top panel, and aligned handle sections 26 and 28, which extend up from the top panel flaps 18 and 20, form a handle 30. A tear strip 32, defined along its major length by spaced parallel tear lines 34 and 36, extends from a point in the side panel 12 to a point in the end panel 14, bridging the fold line or corner 38 between the adjacent panels. Tear line 40 in side panel 12 extends up from the end of the tear strip 32 to the fold line 22, and in like manner tear line 42 in end panel 14 extends up from the tear strip to the fold line 44. A diagonal score line 46 in the top panel flap 18 extends from a point ad,acent the end of the tear line 40 to a point adjacent the end of the tear line 42.
The area between the tear lines 34, 40 and 42 and the top panel comprises a right-angled flange 45, and the portion of the top panel between the flange 45 and the score line 46 comprises a closure flap 47. The function of the tear lines, score line, flange and closure flap will be made clear below.
A blank for forming the carton is shown in FIG. 2, wherein like reference numerals to those used in FIG. 1 refer to similar elements. The blank 48 is substantially rectangular in shape and comprised of a suitably strong, flexible material such as paperboard of the type conventionally employed in the carton and carrier industry.
The end panel section 14 containing the tear strip is at the end of the blank and the side panel section 12 containing the tear strip is adjacent to it, connected by the fold line 38. The other end panel section 14 is connected along fold line 50 to the same side panel section 12 and along fold line 52 to the other side panel section 12. A first insert flap S4 is connected to the latter side panel section 12 along fold line 56 and to a second insert flap 58 along fold line 60. The function of the insert flaps will be explained in more detail below.
Bottom panel flaps 62 are connected to the side panel sections 12 by fold lines 64, and bottom panel glue flaps 66 are connected to the end panel sections 14 and 54 along fold lines 68. A top panel glue flap 70 is connected to the end panel section 14 containing the tear strip by the fold line 44, and another top panel glue flap 72 is connected to the other end panel section 19 by fold line 74. As also shown in FIG. 1, the top panel flaps 18 and 22 are connected to the side panel sections 12 along fold lines 22 and 24, respectively. The handle sections 26 and 28 are connected to their top panel flaps 18 and 20 by fold lines 76, and are separated from the top panel flaps by slits 78. Handle tabs or flaps 80 and 82 are connected to the handle sections 26 and 28 along fold lines 84 and 86, and are separated from the top panel flaps by slits 88.

21~ 0107 In addition, top panel glue flap 70 includes a fold line 90 extending from a point adjacent the end of tear line 42 to a point adjacent the end of score line 46, and top panel flap 20 includes a fold line 92 extending diagonally from a point adjacent the handle section 28 to a point at the end edge of the blank intermediate the width of the top panel flap 20.
To form a carton from the blank 48, assuming that the side of the blank facing the viewer is the interior surface of the blank, the blank is folded in about fold lines 52 and 38, causing the inse~t flap 54 to overlie the remote end panel section 14 and the insert flap 58 to overlie a portion of the adjacent side panel section 12. The insert flaps 54 and 58 are adhered to the end panel section 14 and the side panel section 12, respectively, in the stippled areas of the latter panel sections. Note that the insert flaps are not adhered to the tear strip 32 or to the flange 45. It will be understood that although the glue has been shown as being applied to the end and side panel sections, it can instead be applied to the insert flaps 54 and 58 in a similar pattern so as to contact the blank in areas corresponding to the stippled portions.
The folding and gluing steps result in formation of a collapsed sleeve. The sleeve is then squared up and the bottom panel is formed in conventional manner by folding the bottom glue flaps 66 in, folding and adhering one of the bottom panel flaps 62 to the glue flaps and folding and adhering the other bottom panel flap to the first bottom panel flap. The resulting open-top carton is illustrated in FIG. 3, which shows the top panel flaps 18 and 20 and the top panel glue flaps 70 and 72 extending upwardly 2S
substantial extensions of the side and end panels of t~.e carton. The carton is filled with the flaps in t~e position shown or folded back even farther so as not to interfere with the filling process. As illustrated in FIC-.
4, the insert flap 58 is in face-to-face contact with cn end portion of the side panel 12 and the insert flap 54 s in similar contact with the adjacent end panel 14.

21~()107 After the carton has been filled the glue flaps 70 and 72 are folded down into horizontal position, glue is applied to the top panel flap 20 and the top panel flap is folded down and adhered to the glue flaps. Glue is also applied to the top panel flap 18, after which it is folded down and adhered to the glue flaps and to the underlying portions of the top panel flap 20. During these maneuvers edge 88 of the central portion of the top panel flap 20 moves under the edge 88 of the top panel flap 18 and the end portions of the top panel flap 18 overlie the end portions of the top panel flap 20. The handle sections 26 and 28 are folded to their upright position and brought together to form the two-ply handle shown in FIG. 1. As can be seen from FIGS. 3 and 5, the fold line 90 of the top panel glue flap 70, the fold line 92 of the top panel flap 20 and the score line 46 of the top panel flap 18 are in substantial alignment.
To open the carton the tear strip 40 is removed, as illustrated in FIG. 6, to create the opening 94 in the end panel 14 and side panel 12. The tear strip may be designed to be readily grasped, as by providing the end with a break-away tip, or by any other conventional expedient.
Removal of the tear strip is readily accomplished since it will be recalled that the tear strip itself is not glued to the underlying insert flaps 54 and 58. The opening process is completed by pivoting the closure flap 47 up about the aligned fold lines 90, 92 and 46, to the position shown in FIG. 7. This can be most conveniently accomplished by pushing up against the corner of the flange 45 with enough force to sever the short tear lines 40 and 42. This is a simple step since, like the tear strip 32, the flange 45 is not adhered to the insert flaps 54 and 58.
The closure flap 47 thus consists of the corner portion of the top panel flap 18, the underlying outer portion of the top panel flap 20 and the underlying corner portion of the top panel glue flap 70. The carton can now be tilted and the contents poured out over the corner formed by the adjoining insert flaps 54 and 58, which thus functions as a pouring spout. Lifting and tilting of the carton is made easy by the upstanding handle.
Although a particular type of top panel configuration and associated handle arrangement has been shown for purpose of illustration, it should be understood that the invention is not limited to such structure. For example, as shown in FIG. 8, the top panel flaps 18' and 20' may be of simpler design, not broken up by inclusion of a handle section but consisting simply of full panel sections containing central handle cutouts 96 and 98. When forming the top panel of a carton of this type, the two top panel flaps overlap, as in the formation of the bottom panel.
The handle cutouts are aligned, permitting a separate handle strap to be adhered to the underlying top panel flap so as to extend up through the cutouts. In such an arrangement, the fold line 92' in the top panel flap 20' is of full length, since the top panel flap is not broken up by a handle section, and underlies the full length of the fold line 90 in a carton formed from the blank.
Regardless of the top panel and handle design, the corner opening and spout arrangement remain the same, with tear strips in the side and end panels and fold lines in the top panel allowing a corner portion of the top panel to be folded up to provide an opening through which the contents of the carton can be poured. Provision of the insert flaps provides a corner pouring edge which guides and controls the flow of the contents in a manner superior to the pouring edge of cartons in which the entire upper edge of one of the end panels functions as the pouring edge.
To reclose the lid or closure flap, it merely has to be pushed down again to its original position. Since the insert flaps maintain the integrity of the corner formation of the carton, the original tight fit of the closure flap flange 45 is again obtained, which tightly maintains the flap in closed position.
The carton is economical to produce, being formed fro~
a single blank of generally rectangular shape by means of a few simple folding and gluing steps which can be carried out by hand or in a packaging machine. It can be carried easily by the upstanding handle, and can be stored or shipped in stacked layers made possible by the ability of the handle to be moved out of the way, as by being folded down or depressed into its recess, depending on the particular top panel and handle design employed. Further, the ability to reclose the carton to a secure, tight condition is very beneficial.
It should be apparent that the invention is not necessarily limited to all the specific details described in connection with the preferred embodiments, but that changes to certain features of the preferred embodiments which do not alter the overall basic function and concept of the invention may be made without departing from the spirit and scope of the invention defined in the appended claims.

Claims (18)

WHAT IS CLAIMED IS:
1. A carton for packaging pourable material, comprising:
side panels connected to end panels, a top panel and a bottom panel;
a closure flap in a corner portion of the top panel movable from closed position to open position;
the closure flap including a flange comprised of upper portions of adjacent side and end panels;
the carton including corner edges over which material packaged in the carton can be poured after the closure flap has been moved from closed to open position; and means for maintaining the closure flap in closed position until disabled.
2. A carton as defined in claim 1, wherein the means for maintaining the closure flap in closed position until disabled comprises tear lines connecting the flange to portions of the adjacent side and end panels.
3. A carton as defined in claim 2, including a tear strip in the side and end panels beneath the flange, the tear strip having an upper edge coinciding with the lower edge of the flange.
4. A carton as defined in claim 1, wherein the top panel includes a fold line about which the closure flap pivots when moving from closed to open position.
5. A carton as defined in claim 4, wherein the fold line extends diagonally across the corner portion of the top panel between adjacent side and end panels.
6. A carton as defined in claim 4, wherein the closure flap is comprised of portions of overlapping top panel flaps and an underlying glue flap, the closure flap fold line being comprised of substantially aligned fold lines in each of the overlapping top panel flaps and the underlying glue flap.
7. A carton as defined in claim 1, wherein said corner edges are comprised of upper edges of inner layers in face-to-face relationship with the portions of the side and end panels forming the flange of the closure flap, said inner layers being nonadhered to said portions of the side and end panels.
8. A carton as defined in claim 7, wherein the inner layers are extensions of the side panel opposite the side panel in which a portion of the flange is located.
9. A carton as defined in claim 7, wherein the flange fits tightly over said inner layers when reclosed after being opened.
10. A carton as defined in claim 1, including a handle extending up from the top panel.
11. A carton for packaging pourable material, comprising:
side panels connected to end panels, a top panel and a bottom panel;
a closure flap in a corner portion of the top panel, the closure flap being connected to the top panel by a fold line about which the closure flap pivots when moved from closed to open position;
the closure flap including a flange comprised of upper portions of adjacent side and end panels;
the carton including corner edges over which material packaged in the carton can be poured after the closure flap has been moved from closed to open position; and tear lines connecting the flange to portions of the adjacent side and end panels, the tear lines maintaining the closure flap in closed position until severed.
12. A carton as defined in claim 11, wherein said corner edges are comprised of upper edges of inner layers in face-to-face relationship with portions of the side and end panels forming the flange of the closure flap, said inner layers being nonadhered to said portions of the side and end panels but being adhered to lower portions of the side and end panels.
13. A carton as defined in claim 11, including a tear strip in the side and end panels beneath the flange, the tear strip having an upper edge coinciding with the lower edge of the flange.
14. A blank for forming a carton for packaging pourable material, comprising:
alternating side and end panel sections connected by fold lines;
bottom panel flaps connected to the side and end panel sections along fold lines;
top panel flaps connected to the side and end panel sections along fold lines, the top panel flaps adapted to be overlapped to form the top panel of the carton;
tear lines in adjacent side and end panel sections forming a flange extending from the fold lines connecting the side and end panel sections to the top panel flaps;
fold lines in the top panel flaps adapted to be substantially aligned in the carton and to extend from one end of the flange to the other so as to form a closure flap in a corner portion of the top panel of the carton; and the blank including edges over which material packaged in the carton can be poured after the closure flap has been moved from closed to open position.
15. A carton blank as defined in claim 14, including a tear strip in said adjacent side and end panel sections beneath the flange, the tear strip having an edge coinciding with a lower edge of the flange.
16. A carton blank as defined in claim 14, wherein the end panel section containing the tear lines is at one end of the blank and the pouring edges are comprised of edges of an insert section connected to the opposite end of the blank.
17. A carton blank as defined in claim 16, wherein the insert section is comprised of a first flap connected to the blank along a fold line and a second flap connected to the first flap along a fold line, the first flap being adapted to be adjacent the end panel section containing the tear lines in a carton formed from the blank and the second flap being adapted to be adjacent at least a portion of the side panel section containing the tear lines.
18. A carton blank as defined in claim 14, including handle means in the top panel flaps connected to the side panel sections.
CA002150107A 1993-09-29 1994-08-11 Corner with reclosable corner pour opening Abandoned CA2150107A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/128,945 US5344066A (en) 1993-09-29 1993-09-29 Carton with reclosable corner pour openings
US128,945 1993-09-29

Publications (1)

Publication Number Publication Date
CA2150107A1 true CA2150107A1 (en) 1995-04-06

Family

ID=22437748

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002150107A Abandoned CA2150107A1 (en) 1993-09-29 1994-08-11 Corner with reclosable corner pour opening

Country Status (14)

Country Link
US (1) US5344066A (en)
EP (1) EP0670801A4 (en)
JP (1) JPH08503676A (en)
KR (1) KR950704161A (en)
AU (1) AU678523B2 (en)
BR (1) BR9405512A (en)
CA (1) CA2150107A1 (en)
CO (1) CO4370757A1 (en)
FI (1) FI951951A0 (en)
NO (1) NO952081L (en)
NZ (1) NZ271832A (en)
TW (1) TW240211B (en)
WO (1) WO1995009109A1 (en)
ZA (1) ZA947611B (en)

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US5680986A (en) * 1996-12-17 1997-10-28 Jefferson Smurfit Corporation Carton with pour spout formed by liner
USD418751S (en) * 1998-02-15 2000-01-11 David Wolf Foldable carton with handles
US6050484A (en) * 1999-07-21 2000-04-18 Fres-Co System Usa, Inc. Convertible-reclosable box/carton with pour spout
US6478219B1 (en) * 2000-11-15 2002-11-12 The Mead Corporation Carton with article dispenser
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US7296731B2 (en) * 2004-03-05 2007-11-20 Meadwestvaco Packaging Systems, Llc Carton with removable corner portion
WO2006052536A1 (en) * 2004-11-03 2006-05-18 Graphic Packaging International, Inc. Carton having opening features
DE602005016956D1 (en) * 2004-11-03 2009-11-12 Graphic Packaging Int Inc CORKING DEVICE FOR CARTONS
US20080000953A1 (en) * 2006-06-30 2008-01-03 Graphic Packaging International, Inc. Carton with features for pouring
US20080006680A1 (en) * 2006-07-07 2008-01-10 Ruben Hernandez Carton with cap
US8628003B2 (en) 2010-09-25 2014-01-14 Meadwestvaco Corporation Product dispensing container, system and method with priming area
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Also Published As

Publication number Publication date
BR9405512A (en) 1999-09-08
EP0670801A4 (en) 1997-01-08
AU678523B2 (en) 1997-05-29
AU7561394A (en) 1995-04-18
NO952081D0 (en) 1995-05-26
CO4370757A1 (en) 1996-10-07
JPH08503676A (en) 1996-04-23
NO952081L (en) 1995-05-26
WO1995009109A1 (en) 1995-04-06
TW240211B (en) 1995-01-11
US5344066A (en) 1994-09-06
ZA947611B (en) 1995-05-16
KR950704161A (en) 1995-11-17
NZ271832A (en) 1997-01-29
FI951951A (en) 1995-04-25
FI951951A0 (en) 1995-04-25
EP0670801A1 (en) 1995-09-13

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Legal Events

Date Code Title Description
FZDE Discontinued